Performance of high - sensitivity OOK, PPM, and DPSK communications using high-power slab-coupled optical waveguide amplifier (SCOWA) based transmitters

Author(s):  
D.O. Caplan ◽  
P.W. Juodawlkis ◽  
J.J. Plant ◽  
M.L. Stevens
Author(s):  
G.M. Smith ◽  
R.K. Huang ◽  
J.P. Donnelly ◽  
L.J. Missaggia ◽  
M.K. Connors ◽  
...  

2011 ◽  
Vol 23 (14) ◽  
pp. 974-976 ◽  
Author(s):  
William Loh ◽  
Frederick J. O'Donnell ◽  
Jason J. Plant ◽  
Michael A. Brattain ◽  
Leo J. Missaggia ◽  
...  

Author(s):  
Paddy K. L. Chan ◽  
Amul D. Sathe ◽  
Kevin P. Pipe ◽  
Jason J. Plant ◽  
Reuel B. Swint ◽  
...  

Nonradiative power dissipation within and near the active region of a high power single mode slab coupled optical waveguide laser is directly measured by CCD-based thermoreflectance, including its variation with device bias. By examining the high spatial resolution temperature profile at the optical output facets, we quantify heat spreading from the source in the active region both downward to the substrate and upward to the metal top contact.


Sensors ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 4346 ◽  
Author(s):  
Jing ◽  
Fan ◽  
Wang ◽  
Zhang ◽  
Cai ◽  
...  

This paper reports on an improved optical waveguide microcantilever sensor with high sensitivity. To improve the sensitivity, a buffer was introduced into the connection of the input waveguide and optical waveguide cantilever by extending the input waveguide to reduce the coupling loss of the junction. The buffer-associated optical losses were examined for different cantilever thicknesses. The optimum length of the buffer was found to be 0.97 μm for a cantilever thickness of 300 nm. With this configuration, the optical loss was reduced to about 40%, and the maximum sensitivity was more than twice that of the conventional structure.


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